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Alma Wilson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marin-County, California
Our Model Tree links this Alma Wilson across the 1920, 1930 and 1940 US Censuses in Marin-County, California (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marin-County, California |
| Surname | Wilson |
| Given Name | Alma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sausalito City |
| Additional Details | |
| Occupation | assistant |
| Industry | doctor's office |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 240 |
| Highest Grade | Hs 4 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Assistant |
| Township / Ward | Sausalito City |
| Est. Birth Year | ~1919 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alma | Age | Birth yr |
|---|---|---|---|---|
| Seraphine Lawrence | Other | — | 33 | ~1907 |
| John Wilson | Head | — | 73 | ~1867 |
| Barbara Lawrence | Other | — | 12 | ~1928 |
| Athena Wilson | Spouse | — | 59 | ~1881 |
| Alma Wilson | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Marin, California
Daughter, age 1
Marin, California · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | Alma E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Marin, California
Daughter, age 12
Marin, California · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wilson |
| Given Name | Alma E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Marin-County, California
Daughter, age 21
Marin-County, California · implied b. ~1919 — 5 household members
| Surname | Wilson |
| Given Name | Alma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sausalito City |
| Occupation | assistant |
| Industry | doctor's office |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 240 |
| Highest Grade | Hs 4 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Alma Wilson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Wilson (~0.92 confidence) and father John Wilson (~0.92 confidence) and father John Wilson (~0.92 confidence) and mother Athena Wilson (~0.92 confidence) and mother Athena Wilson (~0.92 confidence) and mother Athena Wilson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Wilson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
John Wilson
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Wilson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Athena Wilson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Athena Wilson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Athena Wilson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alma Wilson
Daughter · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marin-County, California
Open full size
1940 US Federal Census — Marin-County, California
Page Contents
19 people indexed on this census page (nara:1940:m-t0627-00262-00445)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Augustine Perry | 6 | Daughter | — | California |
| 2 | Walter Ring | 50 | Head | Mech Engineer | California |
| 3 | Myrtle A Ring | 53 | Wife | Accountant | Missouri |
| 4 | Harry D Lillard | 42 | Head | Presser | California |
| 5 | John Wilson | 73 | Head | — | California |
| 6 | Athena Wilson | 59 | Wife | — | California |
| 7 | Alma Wilson THIS PERSON | 21 | Daughter | Assistant | California |
| 8 | Seraphine Lawrence | 33 | Niece | Sales Lady | California |
| 9 | Barbara Lawrence | 12 | Gr niece | — | California |
| 10 | Camille Henry | 68 | Head | — | France |
| 11 | Norbert F Henry | 28 | Son | Accountant | California |
| 12 | Katharyne E Henry | 27 | Daughter-in-law | Stenographer | Colorado |
| 13 | David Benjamin Beach | 20 | Lodger | Engine Dept | Texas |
| 14 | John Albert Beach | 24 | Lodger | Oiler | Texas |
| 15 | Lafayette Cion Gates | 23 | Head | Seaman | California |
| 16 | George Wellwell Cox | 35 | Head | Oiler | California |
| 17 | Margaret Daly Riley | 66 | Head | Housework At Home | Wisconsin |
| 18 | Elizabeth Rupe | 28 | Head | Housework At Home | Minnesota |
| 19 | Diana Rupe | 5 | Daughter | — | California |
Pedigree Summary
Alma
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)